Improvement in expanding drums for paper-cutting machines



I 2 Sheets-Sheet 1.

W, E. HUDSON. um for Paper-Cutting Machine Expanding-Dr Patented May21,1878;

g Fq V Kimesses \mrmwc -PETERS. PHQTO-UTHOGRAPHER, WASHINGTON D c 2Sheets -S-h'eet 2 I W. E. HUDSON. Expanding-Drumfor Paper-CuttingMachine.

Patented May 21, 1878.

UMPEI'ERS. PHOTO-UTHOGRAPHER. WASHINGTON. D C.

' U IrEnSTA'r-ns PATENT OFFIcn.

VILLIAM E. HUDSON, OF NORTH MANCHESTER, ASSIGNOR T0 CHENEY BROTHERS, OFHARTFORD, CONNECTICUT.

'IMPROVEMENT IN EXPANDING DRUMS FOR PAPER-CUTTING MACHINES.

Specification forming part of Letters Patent No. 203,833, dated May 21,1878 application filed May 1, 1878.

To all whom it may concern:

Be it known that I, WILLIAM E. HUDSON, of North Manchester, in thecounty of Hartford and State of Connecticut, have invented certain newand useful Improvements in Expanding Drums for Paper-Cutting Machines;and I do hereby declare that the following is a full, clear, and exactdescription thereof, whereby a person skilled in the art can make anduse the same, reference being had to the accompanying drawings, and tothe letters of reference marked thereon.

Like letters in the figures indicate the same parts.

My improvement relates to the drum over which the paper passes to thecutting mechanism for the purpose of regulating the quantity or lengthdelivered between the cuts.

In the cutting up of a roll of paper into sheets for special purposes,in order to save waste it is exceedingly desirable to make the sheets ofthe exact length required; and the object of my invention is to effectthis purpose by providing an'adjustable expanding drum the circumferenceof which can be readily made larger or smaller, so as to regulate thequantity of paper fed to the cutting mechanism between the cuts, andthereby determine the length of the sheet.

My invention consists in the construction of the drum, and in thecombination and arrangement of the several parts,'which will behereinafter described.

In the accompanying drawings, on two sheets, Figure l is a front view ofmy improved machine. Fig. 2 is an end view of the same, with a part ofthe frame cut away so as to show a section of the cutters. Fig. 3 is avertical longitudinal section of the expanding drum, showing at one endthe expanding-gearing in full View and at the other end in section.

A is the frame of the machine. B is a roll of paper from which thesheets are to be out.

0 is the expanding drum, over which the pa per passes. D is a roller forholding the paper to the surface of the drum. E is the cutter, which maybe of and which is operated by the same prime mover as the drum 0through the interposition of suitable gearing, so that it cuts atdefinite uniform intervals in the angular rotary motion of the drum. Fis the end of the roll of paper from which the sheet is cut off.

The drum 0 is suspended upon an axis in the frame in the usual manner,and receives its rotary motion from this axis. The cylin-" dricalsurface of the drum is divided longitudinally into segments, which, bybeing moved out or in without reference to the axis, enlarge or diminishits size.

Gris a box of which there is one at each end of the drum, for supportingthe expanding mechanism. H is the axis to which the boxes G are keyed. Iis a pinion, gearing into the spur-wheel 'J, which turns freely upon theaxis H. Attached to this spur-wheel, and turning with it, is thebevel-gear K. This bevelgear drives the small gear-wheels L, which turnfreely between cheeks in the box G upon a screw, M, passing through ahollow thread or nut in the wheels L. The screws M are firmly attachedto the segments N of the drum 0, and slide out and in through suitablesockets in the box G.

It will thus be seen that when the pinion I is turned the nuts in thewheels L are turned, and force the screws M, and consequently thesegments N, out or in, as may be desired.

There are two sets of these expanding mechanisms, one at each end of thedrum 0, and they are both operated at once by turning the shaft 0, towhich the two pinions Law attached. The shaft 0 is furnished at itsouter ends with squares for applying a key, or it may be turned in anyother convenient manner.

The drum G having a certain angular rotation at each movement of thecutter, it is obvious that the length of the sheets cut off may beadjusted at will. If it is desired to make the sheets longer, thesegments N are moved outward by means of the expanding mechanism; and ifit is desired to make them shorter,

any usual construction,

the segments are moved inward. In this manner they may be made of anexact size for any special purpose.

What I claim as my invention is- 1. The combination, in a paper-cuttingmachine, of an adjustable drum, having an expandin g cylindricalsurface, with the cutting mechanism the drum having a definite angularrotation at each movement of the cutter, substantially as hereindescribed.

2. The drum 0, having the expandin g mechanism I J K L M, constructedand arranged as described, for moving the segments N out or in, as maybe desired.

WILLIAM E. HUDSON.

Witnesses:

THEO. G. ELLIs, GHAs. H. OWENS.

